{
  "$type": "site.standard.document",
  "description": "In at least outermost side circumferential grooves (11o, 11o) on outermost sides in a tire widthwise direction among a plurality of circumferential grooves (11o, 11i, 11i, 11o) of a tread (7), a plurality of ridge portions (15, 15) are formed in a spaced relation with each other in a tire…",
  "path": "/patents/1411181",
  "publishedAt": "2023-09-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/01",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "In at least outermost side circumferential grooves (11o, 11o) on outermost sides in a tire widthwise direction among a plurality of circumferential grooves (11o, 11i, 11i, 11o) of a tread (7), a plurality of ridge portions (15, 15) are formed in a spaced relation with each other in a tire circumferential direction such that the plurality of ridge portions (15, 15) project from a groove bottom of the outermost side circumferential grooves (11o, 11o) and cross the outermost side circumferential grooves (11o, 11o), and at least one of the widthwise grooves (13c, 13c) on the shoulder land portions (12c, 12c) in shoulder regions among the plurality of land portions (12c, 12b, 12a, 12b, 12c) partitioned by the circumferential grooves (11o, 11i, 11i, 11o) has, on a groove bottom thereof, a widened groove portion (13ce, 13ce) having an increased groove width. Therefore, the pneumatic tire in which the shoulder land portions at which the tread is most deformable and most liable to generate heat can be cooled effectively to suppress the temperature rise is provided.",
  "title": "PNEUMATIC TIRE"
}